Each week Joshua Fruhlinger contributes This is the Modem World, a column dedicated to exploring the culture of consumer technology. When I was a kid, my parents actually rented our home phones from the phone company. They were hard-wired to the wall -- no detachable RJ cables. The phones were heavy, and when you needed a new one, you would call the phone company and get in line. They would then come out in four to six weeks and install the new phone for you at your expense. If you wanted to move the phone to another
